600-nm light is incident on a diffraction grating with a ruling separation of 1.7 10 m. the second order line occurs at a diffraction angle of: 42 45° 21° 10°

Which statement best describes who the period and frequency of electromagnetic was change between gamma rays and microwaves? a) the period and frequency stay the same. b) the period increases and the frequency decreases. c) the period decreases and the frequency increases. d) the period increases and the frequency increases.

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?